Dv/Dt Filter Plus Voltage Peak Limiter (Option L10) - Siemens Sinamics G120P Operating Instructions Manual

Electrical installation
4.9 Other connections
4.9.4

dv/dt filter plus Voltage Peak Limiter (option L10)

Description
The dv/dt filter plus Voltage Peak Limiter comprises two components: the dv/dt reactor and
the Voltage Peak Limiter, which cuts off the voltage peaks and returns the energy to the DC
link.
The dv/dt filters plus Voltage Peak Limiter must be used for motors for which the proof
voltage of the insulation system is unknown or insufficient.
The dv/dt filter plus Voltage Peak Limiter limits the voltage gradient to values < 500 V/µs and
the typical transients to the values below (with motor cable lengths of < 150 m):
● < 1000 V at V
An additional cabinet with a width of 400 mm is necessary for the following cabinet drives
with option L10 (this increases the weight to approx. 300 kg):
● 6SL3710-1PE35-8AA0
● 6SL3710-1PE36-6AA0
● 6SL3710-1PE37-4AA0
Restrictions
The following restrictions should be observed when a dv/dt filter plus Voltage Peak Limiter is
used:
● Maximum permissible motor cable lengths:
– Shielded cable: max. 300 m
– Unshielded cable: max. 450 m
NOTICE
Material damage due to component failure for operation of the dv/dt filter without connected
motor
When a dv/dt filter plus Voltage Peak Limiter is used, the drive must not be operated
without a connected motor, otherwise the filter could be destroyed because of component
failure.
• Never operate the dv/dt filter plus Voltage Peak Limiter without a connected motor.
NOTICE
Damage to the dv/dt filter due to lack of activation during commissioning
Not activating the dv/dt filter plus Voltage Peak Limiter during commissioning can lead to
damage to the dv/dt filter.
• Activate the dv/dt filter compact plus Voltage Peak Limiter during commissioning with
108
< 575 V
line
the parameter p0230 = 2.
Inverter cabinet units
Operating Instructions, 12/2014, A5E32923362A